# SDR USAA2014072100022

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2014
- Submitted: July 21, 2014
- Operation: Air carrier
- Aircraft: N550UW
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 4935
- Aircraft time: 10,072 hours, 3,511 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: EVT3454HC
- Part serial: 2539
- Condition: Malfunctioned
- Location: Zone 200
- Part time: 10,074 hours, 3,512 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2014072100022

## Discrepancy

AT ALTITUDE LOUD NOISE FOLLOWED BY BURNING ELEC SMELL & VIBRATION.  QRH BLOWER & EXTRACT TO OVERRIDE, SMELL DISSIPATED.  FLIGHT DIVERTED FOR INSPECTION.  REPLACED EXTRACT FAN IAW AMM 21-26-51-000-001-A 400-001-A.

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